a6/SysUtils.java
aozhiwei 54788a288d 1
2019-12-17 16:09:51 +08:00

62 lines
1.5 KiB
Java

package a6;
import java.io.File;
import java.io.FileReader;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.lang.reflect.Array;
public class SysUtils {
public static void test() {
System.out.println("test");
}
public static int getDaySeconds(int time_val, int incdays) {
int time_zone = 8;
return (int)((time_val + time_zone * 3600)/3600/24 + incdays) * 3600 * 24 - 3600 * time_zone;
}
public static int now() {
return (int)(System.currentTimeMillis() / 1000);
}
public static final <T> T[] newArray(Class<T> cls, int size) {
T[] arr = (T[])Array.newInstance(cls, size);
try {
for (int i = 0; i < arr.length; ++i) {
arr[i] = cls.newInstance();
}
return arr;
} catch (Exception e) {
return null;
}
}
public static boolean readStrings(String filename, ArrayList<String> strings) {
File csvfile = new File(filename);
csvfile.setReadable(true);
BufferedReader br = null;
try {
br = new BufferedReader(new FileReader(csvfile));
String line;
try {
while ((line = br.readLine()) != null) {
}
br.close();
} catch (IOException e) {
return false;
}
} catch (FileNotFoundException e) {
return false;
}
return true;
}
}